Boiler replacement costs in Stoughton typically range from $4,500 to $8,500, depending on the efficiency level, brand, and complexity of your installation. High-efficiency condensing boilers cost more upfront but deliver significant long-term savings through reduced fuel consumption.Factors affecting your total cost include whether you need gas line upgrades, electrical modifications, or new venting systems. We provide detailed, upfront pricing during your free assessment so you know exactly what you’re investing before any work begins.Remember to factor in Mass Save rebates, which can reduce your net cost by up to $2,750. Many homeowners find that the combination of rebates and energy savings makes high-efficiency replacement surprisingly affordable.